Refacing and recounterboring tool.



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RBFAGING AND BEGOUNTERBORING TOOL.

APPLICATION FILED AUG. 29, 1012.

1,07 3,526. Patented Sept. 16,1913.

M at. INVENTOR coumnu ILANOGHAI'II cu. wAsnmfiroN. u. c,

UNITED STATES PATENT UFFICE.

ARCHIE N. RUTAN, OF ELMIRA, NEW YORK.

REFACING AND RECOUNTERBORING TOOL.

Application filed August 29, 1912.

To all whom it may concern:

' Be it known that I, Anonm N. RU'rAN, citizen of the United States,residing at Elmira, in the county of Cheumng and State of New York, haveinvented new and useful IHIPIOVQIUCHiS in Refacing and ItecounterboringTools, of which the following is a specification.

My present invention pertains to metalworking tools, and contemplatesthe provision of a simple, etlicient and easily operated refacing andre-coimterbming tool, designed more especially for refacing andrecounterboring triplevalves which are broken off or have stripped orworn threads at the union connection of their check-valve case portions,and this without the necessity of removing the triple-valves from theircomplementary parts.

lVith the foregoing in mind, the special tool will be fully understoodfrom the following description and claims when the same are read inconnection with the drawings, accompanying and forming part of thisspecification, in which:

Figure 1 comprises disconnected views of a triple-Valve and my noveltool; a portion of the tool being in section as is also the part of thetriplewalve casing to which the tool is applied. Fig. 2 is an enlargedview, partly in section and partly in elevation, of the tool. Fig. 3 isa front elevation of the cutting members of the tool. Fig. 4 is a sideelevation showing said members.

Similar numerals of reference designate corresponding parts in all. ofthe views of the drawings.

The threaded portion 1 of the triple-valve casing is broken off at 2,and my novel tool is designed to be turned on the said threaded portionand manipulated to reface and re-counterborc the same.

In the present and best practical embodiment of my invention of which Iam cognizant, the tool comprises a shank 8 that is circular incross'section and is provided with a rear end l, of angular form incrosssectio-n, for the application of an appro' priate device forturning the cutting mem bers of the tool about a common axis. At

its forward end the said shank is provided with an integral enlargement5, of circular form in cross-section, which is provided on its forwardside with a circular series of cutting teeth 6 and therefore constitutesone cutting member of the tool. The said teeth Specification of LettersPatent.

Patented Sept. 16, 1 913.

Serial No. 717,778.

6 are adapted, when the tool is properly applied and manipulated, toreface and render square the end 2 of the valve casing portion 1. Athreaded socket 7 is provided in the center of the tool portion 5, andin said socket is disposed the threaded stem 8 of a head 9 which isprovided on its forward side with a circular series of teeth 10 andhence constitutes a second cutting member. During the manipulation ofthe t'ol the teeth 10 are adapted to deepen the counte1' bore 11 of thevalve casing portion 1. In its face the member 9 is provided with anangular depression 12 to receive a suitable implement employed inconnecting the said member 9 to and disconnecting the same from themember 5.

In addition to the elements named my novel tool comprises an interiorlythreaded revoluble coupling mounted on the shank 3 back of theenlargement or member The said coupling preferably, though notnecessarily, is composed of a collar 12, and a tubular portion 13mounted on a reduced and threaded portion of the collar and interiorlythreaded at 1st to engage the exterior thread of the triple-valveportion 1.

In the practical use of my novel tool, the coupling thereof is turned onthe triplevalve portion 1, and then the shank is turned within thecoupling whereupon the triplevalve portion 1 will be re't'aced orrendered square at 2 and its counterbore 11 will be rendered deeper, andthis at the same time and with the expenditure of but little effort.

It will be appreciated from the foregoing that incidental to the use ofmy novel tool, the working portion of the tool is guided and held trueto its work at two points- 7'. 0., by the arrangement of the cuttingmember 5 in the smooth bore of the coupling portion 13, and by thedisposition of the shank 3 in the aperture of the coupling por tion 12;said shank 3 serving while guiding the cutters to enable the operator tohold the cutting members under pressure to their work, and the innerface of the coupling portion 12 serving as a bearing behind the cuttingmember 5.

During the use of the tool, the working portion thereof is fed for*ardly, as occasion demands, in the smooth bore of the coupling portion13.

As before stated my novel tool is designed especially to reface andre-counterbore broken check-valve cases, this being matcriallyadvantageous since it obviates the necessity of removing and discardingthe costly castings of which the said check-valve cases form parts. Idesire it understood, however, that my novel tool may be used to advantage in various other connections.

Obviously various changes may be made in the detail construction withoutinvolving departure from the scope of my invention as defined in myappended claims,

Having described my invention, what I claim and desire to secure byLetters-Patent, is:

1. A metal-working tool, comprising a shank, of circular form incrosssection, having a rear end of angular form in cross-section; anenlargement of circular form in outline, integral with the shank at theforward end thereof and having a central threaded socket and also havinga circular series of cutting teeth on its forward side; a cutting membersmaller in diameter than said circular series of cutting teeth, disposedin front of said enlargement and having a threaded stem disposed in thesocket of the enlargement, and also having a circular series of cuttingteeth on its forward side, and a central angular depression; and arevoluble coupling made up of a collar mounted on the shank back of theintegral enlargement and having a reduced and threaded portion and atube threaded on said reduced pon tion and surrounding and extendingforward of the cutters and having its forward portion interiorlythreaded and also having a circular smooth bore in rear of said threadedportion.

2. A metal working tool, comprising a shank of circular form incross-section, an enlargement of circular form in outline, fixed withrespect to the shank at the forward end thereof and having cutting teethon its forward side, a smaller cutting member disposed in front of andfixed with respect to said enlargement and having cutting teeth on itsforward side, and a revoluble coupling having a collar mounted on theshank behind the said enlargement, and a tube fixed with respect to saidcollar and surrounding and extending forwardly of the cutting means andhaving its forward portion interiorly threaded and also having acircular smooth bore in rear, of said threaded portion.

3. A metal working tool, comprising a shank of circular form incross-section, an enlargement of circular form in outline integral withthe shank at the forward end thereof and having cutting means on itsforward side, and a revoluble coupling made up of a collar mounted onthe shank back of the circular enlargement, and a tube fixed withrespect to said collar and surrounding and extending forwardly of thecircular enlargement and having its forward portion interiorly threadedand also having a circular smooth bore in rear of said threaded portion.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ARCHIE N. RUTAN.

l/Vitnesses C. V. FOWLER, T. E. T'URPIN.

Copies of this patent may be obtained. for five cents each, byaddressing the Commissioner of Patents, Washington, 10. C.

